Lock for awning-type windows



Feb. 28, 1967 s. GOLVEN 3,305,971

LOCK FOR AWNING-TYPE WINDOWS 2 Sheets-Sheet 1 Filed Nov. 5, 1965 Fig. 5

38 7 Selig Go/en 62 I I w INVIENTOK.

5 I J: BY 3 26 Feb. 28, 1967 s. GOLEN 3,305,971

LOOK FOR AWNING-TYPE WINDOWS Filed Nov. 5, 1965 2 Sheets-Sheet 2 Fig.4

Fig.3

.Se/ig Galen 1N VIENTOK United States Patent Ofilice 3,305,971 PatentedFeb. 28, 19 67 LOCK FOR AWNING-TYPE WINDOWS Selig Golen, Miami, Fla.,assignor to Yale Ogron Mfg. Co., Inc., a corporation of Florida FiledNov. 3, 1965, Ser. No. 506,251 Claims. (CI. 49-81) The present inventiongenerally relates to improvements in awning-type windows and morespecifically to a lock device for locking the vent panels of anawningtype window when in a closed position. The lock device set forthin the present application is basically the same as that disclosed inany prior co-pending application U.S. Ser. No. 36,526, filed June 16,1960 and now abandoned, with respect to which the present application isa continuation-in-part.

It is a well known problem that awning-type windows are not too securewhen the the vents are in their closed position inasmuch as the ventsmay be forced open by a small amount without the use of the windowactuating mechanism associated therewith. Thus, it is the primary objectof the present invention to positively and definitely lock each vent inthe closed position and thereby prevent any of the vents from beingforced outwardly.

Another object of the present invention is to provide a locking devicefor the vents of awning-type windows in which each side of eachawning-type window .vent is provided with a locking mechanism and all ofthe looking mechanisms are automatically operated independent of eachother.

The present invention forms a highly effective lock since each vent islocked individually and controlled individually. The vents areabsolutely devoid of interconnection as far as the locking mechanism isconcerned and the locking mechanism is operated by movement of the slidebar in relation to the frame.

In accordance with the foregoing objects, each window vent is providedwith a locking plate pivotally mounted by the main frame about the sameaxis as the mounting link connecting the vent to the frame. A cam andslot arrangement on the locking plate cooperates with an actuating pinon the slide bars through which the vents are displaced between open andclosed positions in order to sequentially displace the locking plate outof the path of movement of a lockpin projecting from the event as thevent approaches a closed position, the lock plate then being displacedtoward a lock position just before the vent reaches the closed positionso that the lock platemay engage the lockpin. Thus, when the ventassumes a completely closed position, the lock plate will be in alocking position to positively prevent any opening of the vent unlesseffected through the operating slide bars.

A still further feature of the present invention is to provide a lockingplate having a stop projection so as to limit its upward displacement toa release position.

These together with other objects and advantages which will becomesubsequently apparent reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming a part hereof, whereinlike numerals refer to like parts throughout, and in which:

FIGURE 1 is a perspective view of an awning-type window with the lockingdevice of the present invention incorporated therein;

FIGURE 2 is a partial transverse sectional view taken substantiallythrough a plane indicated by section line 2-2 in FIGURE 1;

FIGURE 3 is a partial sectional view taken substantially through a planeindicated by section line 33 in FIGURE 2 illustrating the windowassembly in an open position;

FIGURE 4 is a partial sectional view similar to FIG- URE 3 but showingthe vent frame moving toward th closed position;

FIGURE 5 is a partial sectional view similar to FIG- URE 4 but showingthe vent frame as it approaches the closed position;

FIGURE 6 is a partial sectional view similar to that of FIGURE 5 butshowing the vent frame in a completely closed position;

FIGURE 7 is an enlarged side sectional view showing the lock plate inthe lock position thereof;

FIGURE 8 is a partial sectional view showing the locking plate in itslimit position.

Referring now specifically to the drawings, the numeral 10 generallydesignates an awning-type window which includes a plurality of panels orvents 12 carried by a hollow frame structure 14 for movement from aclosed position to an open outwardly inclined position. The frame 14 isprovided with hollow side rails 18 housing a vent operating assemblywhich is actuated by the actuating handle 20 of a conventional actuatingmechanism disposed interiorly of the frame 14 as shown in FIGURES 1 and3. The operating assembly includes a vertically reciprocable rigid slidebar 22. The slide bar is connected to a plurality of hinge arms 24 whichare secured to and project upwardly from the side edges of the vents 12.Pivotally supporting the vents 12 in the frame 14, are links 26, eachlink being pivotally connected to the vent 12 by a pivot pin 28 andpivotally connected to the frame by stationary pivot pin 30. Aconnecting link 32 interconnects the crank element associated with theactuating mechanism with the slide bar 22 so that turning of theoperating handle 20 will impart vertical movement to the slide bar.Since the same rigid slide bar 22 is connected to the vent, verticalmovement is instantaneously transmitted through the connecting pin 34 tothe vent 12 so that the vent may be displaced from the closed positionillustrated in FIGURE 6 to a fully opened position as illustrated inFIGURE 3 undergoing both vertical and pivotal movement. The foregoingarrangement however ordinarily permits a limited degree of movement ofthe vent from its closed position by use of some instrument such as ascrewdriver applied under the bottom edge of the vent for displacementthereof outwardly.

In order to prevent such movement of the vents after they have beenmoved to a closed position, a lock mechanism is provided and isgenerally designated by numeral 36. The lock mechanism as shown inFIGURE 7 includes a lock plate 38 having an aperture' 40 by which it-ispivoted about axis common with the pivotal axis for the link 26 on thepin 30 whereby the lock plate may swing freely about the pin axis. Thetop edge 42 of the lock plate is straight and the forward or outwardedge 44 is perpendicular thereto. Disposed inwardly of the outward edge44 is a vertically extending notch '46 having a longitudinal axis 47 asshown in FIGURE 7 substantially parallel to the edge 44. The outwardside of the notch 46 flares outwardly at the lower end 48 while theinward side of the notch is inclined inwardly at 50 thereby providingsomewhat of an entrance throat for the notch 46.

Facing inwardly and communicating with the rear edge of the plate 36 isa notch or actuating cam slot 52 disposed in perpendicular relation tothe notch 46. The area of the plate 38 between the notch 46 and the slot52 is generally in the shape of a hook formed by cam surface 54 whichextends from the lower edge of the slot 52. The lower edge of the slot52 is somewhat shorter than the upper edge which intersects the rearedge 56 58 that extends from the edge 56 toward the top edge 42.

A stop projection 59 interconnects the edges 58 and 42 for purposes tobe hereafter explained.

The slot 52 and the cam surface 54 constitute cam means engagea-ble byan actuating pin 60 carried on the slide bar 22 while the notch 46 isengageable with a lockpin 62 carried on the vent 12. The lockpin 62 islocated on the vent closer to the upper end thereof than the lower endso that it may be engaged by the notch 46 before the lower end of thevent reaches its closed position. The lock plate 38 together with thepins 60 and 62 will be repeated on each side of each vent 12 therebyenabling the Vents to be closed in any sequence with each lock mechanismbeing individually operated and dependent only upon the structure of theslide bar and the vent for ope-ration.

With the awning-type window in an open position as illustrated in FIGURE3, the slide bar is moved upwardly in order to close the vent 12. As theslide bar 22, link 26 and vent 12 move toward a closed position andreach the position illustrated in FIGURE 4, the actuating pin 60 engagesthe cam surface 54 and pivotally displaces the lock plate 38 upwardly.This will continue until the actuating pin enters the slot 52corresponding to a pin receiving or release position for the lockingplate. In this release position, the stop projection 59 abuts the siderail 18 so as to prevent any further upward displacement of the lockplate. Thus, the lock plate will be displaced to the release positionout of the path of movement of the lock pin 62 so that as the ventapproaches the closed position, the lockpin will become aligned with thenotch 46 at its entrance throat. Continued upward displacement of theslide bar 22 with the actuating pin 60 within the slot 52, causes thelock plate 38 to pivot downwardly so that the notch 46 guidinglyreceives the lock pin 62 between the sides thereof as shown in FIGURE 5.As the slide bar 22 completes its upward travel in order to fully seatthe lockpin 62 within the notch 46, final movement of the vent to itsclosed position is assisted by the pivotal displacement of the lockplate itself acting through the notch 46 and lockpin 62. When the vent12 assumes its fully closed position as shown in FIGURE 6, the lockplate 38 will be in its lock position fully seating the lockpin 62within the notch 46. In such lock position, the longitudinal axis 47 ofthe notch 46 will be slightly inclined inwardly relative to the mainframe or slide bar 22 as more clearly seen in FIGURE 7.

In the position of FIGURE 6, the vents 12 are socurely locked in theirclosed position at each side edge thereof and each vent is individuallylocked with the locking mechanism of one vent not being dependent uponor otherwise associated with the locking mechanism of the other vent.When the vents are moved toward the open position from the closedpositon as illustrated in FIGURE 6, the slide bar is moved downwardly.When this occurs, the actuating pin 60 will engage the bottom edge ofthe slot 52 thus upwardly camming the plate 38 in order to accommodatemovement of the lockpin 62 by the vent out of the notch 46. After thelock plate is disengaged from the lockpin in this fashion, the actuatingpin moves downwardly with the slide bar 22 to a position below the lockplate permitting the lock plate to return to a normal position with thetop edge 42 substantially horizontal and the forward edge 44substantially vertical as shown in FIGURE 3.

The actuating pin 60 during its upward movement with the slide bar notonly cams the lock plate upwardly to the release position but will alsoserve to subsequently urge the lock plate 38 downwardly when it engagesthe upper edge of the slot 52 since the actuating pin is slightly spacedfrom the axis of the pivot pin 30 thereby assuring locking movement ofthe lock plate 38. The stop projection 59 serves to limit upward orcounterclockwise displacement of the lock plate as shown in FIGURE 8 inorder to avoid counterclockwise overtravel beyond the release positionto insure that the actuatingpin will remain in alignment with the slot52. The actuating pin will thereby reliably force the locking plate toits locking position shown in FIGURES 6 and 7 wherein the locking notch46 is orientated at its inward inclination aforementioned. This inwardinclination of the notch 46 will positively prevent outwardlydisplacement of the vent since any outward force applied to the lockingplate through the locking pin would tend to downwardly cam the lockplate. Further, the vertical elongation of the notch 46 and its outwardspacing from the pivot pin 30 will require vertical travel of thelockpin 62 by a substantial amount before the locking plate isdisengaged from the lockpin. Thus, the orientation of the locking notch46 and its configuration are essential for reliable and positive lockingof a vent within a window construction of the described type wherein arigid slide bar is pivotally connected to the vent in spaced relation toits pivotal support by the frame mounted link 26. Further, the pivotalmounting of both the link 26 and the lock plate 38 on the same pivot pin30 facilitates construction, assembly and operation of the lockmechanism.

The foregoing is considered as illustrative only of the principles ofthe invention. Further, since numerous modifications and changes willreadily occur to those skilled in the art, it is not desired to limitthe invention to the exact construction and operation shown anddescribed, and accordingly all suitable modifications and equivalentsmay be resorted to, falling within the scope of the invention asclaimed.

What is claimed as new is as follows:

1. In a multi-vent window construction having a main frame, a pluralityof vent frames mounted for movement inwardly and outwardly of the mainframe, vertically movable slide bars mounted on the main frame,operating arms pivotally connecting the slide bars to the vent framesadjacent upper ends of the vent frames, pivot pins fixedly mounted onthe main frame, supporting links mounted on the pivot pins and pivotallyconnected to the vent frames adjacent the upper ends, an operatingmechanism mounted on the main frame and connected to the slide bars fordisplacing the vent frames between open and closed positions relative tothe main frame, and lock means for independently holding each of thevent frames in a closed position, each of the lock means including, alock plate pivotally mounted on said pivot pin and having -an actuatingnotch below said pivot pin and an elongated locking notch spacedoutwardly of said pivot pin, a cam surface on the lock plate, anacauating pin mounted on the slide bars of engagement with the camsurface prior to entry into said actuating notch to displace the lockplate to a receiving position, a lock pin mounted on the vent framecloser to the upper end thereof than to the lower end for reception insaid locking notch of the lock plate as the vent frame approaches theclosed position, said locking notch 'being elongated along alongitudinal notch axis and receiving the locking pin when the lockplate is being displaced by the actuating pin from said receivingposition toward a locking position, said lock plate when disengaged fromthe actuating and locking pins assuming a positon in the path ofmovement of the locking pin with said notch axis substantially parallelto the main frame, the locking notch in the locking position of the lockplate confining the locking pin against lateral movement thereof inopposite directions.

. 2. The combination of claim 1 including a stop projection formed onthe lock plate and abutting the main frame when the lock plate is in thereceiving position.

3. In combination with a window frame, a rigid operating bar slidablymounted on the frame, a panel pivotally connected to said operating bar,a mounting link pivotally interconnected between said operating bar andthe panel and lock means for holding the panel in a closed position inparallel spaced relation to the operating bar comprising, a lock platehaving an elongated notch, means pivotally mounting said lock plate andthe mounting link on the frame about a common axis, cam means mounted onthe lock plate and engageable by said rigid operating bar for displacingthe lock plate between a lock position and a release position inresponse to downward displacement of the operating bar, a lock pinmounted on the panel for movement along a path intersecting the lockplate in the lock position thereof, said elongated notch being formed bydownwardly opening sides spaced laterally and outwardly from the commonaxis for guiding movement of the lock pin therebetween a substantialdistance as the panel approaches and departs from the closed position,said sides of the notch extending inwardly toward the operating bar whenthe lock plate is in the closed position and confining the lock pinagainst lateral movement, stop means mounted on the lock plate andengageable with the frame for preventing overtravel of the lock platebeyond said release position out of the path of movement of the lockpin.

4. The combination of claim 3 wherein said cam means comprises ahorizontally elongated slot formed in the lock plate spaced below saidcommon axis, a cam surface formed on the lock plate below the slot andan actuating pin mounted on the operating bar engaging the cam surfaceand entering the slot in response to upward displacement of theoperating bar to sequentially displace the lock plate to the releaseposition and from the release position to the lock position as the panelapproaches the closed position.

5. In combination with a window frame, a rigid operating bar slidablymounted on the frame, a panel pivotally connected to said operating bar,a mounting link pivotally interconnected between said operating bar andthe panel and lock means for holding the panel in a closed position inparallel spaced relation to the operating bar comprising, a lock platehaving an elongated notch, means pivotally mounting said lock plate andthe mounting link on the frame about a common axis, cam means mounted onthe lock plate and engageable by said rigid operating bar for displacingthe lock plate between a lock position and a release position inresponse to downward displacement of the operating bar, a lock pinmounted on the panel for movement along a path intersecting the lockplate in the lock position thereof, said elongated notch being formed bydownwardly opening sides spaced laterally and outwardly from the commonaxis for guiding movement of the lock pin therebetween a substantialdistance as the panel approaches and departs from the closed position,said sides of the notch extending inwardly toward the operating 'barwhen the lock plate is in the closed position and confining the lock pinagainst lateral movement, said cam means comprising a horizontallyelongated slot formed in the lock plate spaced below said common axis, acam surface formed on the lock plate below the slot and an actuating pinmounted on the operating bar engaging the cam surface and entering theslot in response to upward displacement of the operating bar tosequentially displace the lock plate to the release position and fromthe release position to the lock position as the panel approaches theclosed position.

References Cited by the Examiner UNITED STATES PATENTS 2,766,491 10/1956Wiley 2042 2,893,728 7/ 1959 Tucker 2042 2,950,510 8/1960 Tucker 2042HARRISON R. MOSELEY, Primary Examiner.

A. I. BREIER, Assistant Examiner.

1. IN A MULTI-VENT WINDOW CONSTRUCTION HAVING A MAIN FRAME, A PLURALITYOF VENT FRAMES MOUNTED FOR MOVEMENT INWARDLY AND OUTWARDLY OF THE MAINFRAME, VERTICALLY MOVABLE SLIDE BARS MOUNTED ON THE MAIN FRAME,OPERATING ARMS PIVOTALLY CONNECTING THE SLIDE BARS TO THE VENT FRAMESADJACENT UPPER ENDS OF THE VENT FRAMES, PIVOT PINS FIXEDLY MOUNTED ONTHE MAIN FRAME, SUPPORTING LINKS MOUNTED ON THE PIVOT PINS AND PIVOTALLYCONNECTED TO THE VENT FRAMES ADJACENT THE UPPER ENDS, AN OPERATINGMECHANISM MOUNTED ON THE MAIN FRAME AND CONNECTED TO THE SLIDE BARS FORDISPLACING THE VENT FRAMES BETWEEN OPEN AND CLOSED POSITIONS RELATIVE TOTHE MAIN FRAME, AND LOCK MEANS FOR INDEPENDENTLY HOLDING EACH OF THEVENT FRAMES IN A CLOSED POSITION, EACH OF THE LOCK MEANS INCLUDING, ALOCK PLATE PIVOTALLY MOUNTED ON SAID PIVOT PIN AND HAVING AN ACTUATINGNOTCH BELOW SAID PIVOT PIN AND AN ELONGATED LOCKING NOTCH SPACEDOUTWARDLY OF SAID PIVOT PIN, A CAM SURFACE ON THE LOCK PLATE, ANACTUATING PIN MOUNTED ON THE SLIDE BARS OF ENGAGEMENT WITH THE CAMSURFACE PRIOR TO ENTRY INTO SAID ACTUATING NOTCH TO DISPLACE THE LOCKPLATE TO A RECEIVING POSITION, A LOCK PIN MOUNTED ON THE VENT FRAMECLOSER TO THE UPPER END THEREOF THAN TO THE LOWER END FOR RECEPTION INSAID LOCKING NOTCH OF THE LOCK PLATE AS THE VENT FRAME APPROACHES THECLOSED POSITION, SAID LOCKING NOTCH BEING ELONGATED ALONG A LONGITUDINALNOTCH AXIS AND RECEIVING THE LOCKING PIN WHEN THE LOCK PLATE IS BEINGDISPLACED BY THE ACTUATING PIN FROM SAID RECEIVING POSITION TOWARD ALOCKING POSITION, SAID LOCK PLATE WHEN DISENGAGED FROM THE ACTUATING ANDLOCKING PINS ASSUMING A POSITION IN THE PATH OF MOVEMENT OF THE LOCKINGPIN WITH SAID NOTCH AXIS SUBSTANTIALLY PARALLEL TO THE MAIN FRAME, THELOCKING NOTCH IN THE LOCKING POSITION OF THE LOCK PLATE CONFINING THELOCKING PIN AGAINST LATERAL MOVEMENT THEREOF IN OPPOSITE DIRECTIONS.